A heat pump works much the same way an air conditioning unit works with a few differences. In the cooling mode it transfers heat outside from the inside and in the heating mode it transfer heat from the outside to the inside*.
Union, Maine. Union is a town in Knox County, Maine, United States. The population was 2,259 at the 2010 census. It is home to the Matthews Museum of Maine Heritage and annual Union Fair.
Union County is a county located in the US state of Ohio. As of the 2010 census, the population was 52,300. Its county seat is Marysville. Its name is reflective of its origins, it being the union of pieces of Franklin, Delaware, Madison, and Logan counties.